Pumping device

ABSTRACT

The present invention is a pump. It has few components. It has a simple producing procedure and a simple assembling procedure. It can reduce the noise occurred when a pump vibrates. And it runs with saved energy.

FIELD OF THE INVENTION

The present invention relates to a pump, more particularly, relates to lessening a component number of the pump; simplifying a fabrication procedure and an assembly procedure; and reducing a friction noise from vibration.

DESCRIPTION OF THE RELATED ART

A prior art, “A radial-sliding-and-pushing pump”, is proclaimed in Taiwan. The prior art comprises a base, a rotor, a sliding block and a towing member.

Therein, the base is formed with a disk having a surrounding wall at its rim. The base has two sets of connecting pipes and each set has two connecting pipes located at two radial ends separately. Two inward arc protrusions are located on inner surface of the surrounding wall at two radial ends separately. Each protrusion is located between two neighboring connecting pipes at each one of the radial ends. And a shaft of the disk is penetrated through an axis hole.

The rotor is movably set in the surrounding wall. The outer surface of the rotor is stuck to an arc surface of the protrusion. Thus, a pair of flow paths is formed between the surrounding wall and the rotor and is connected with the connecting pipes. An axis rod on an end surface of the rotor penetrates out the base through the axis hole for an outside driver to rotate the rotor. A sliding channel at the opposite end surface of the rotor is set along an axis radial and is penetrated out the outside rim of the rotor at two ends of the sliding channel.

The sliding block is embedded in the sliding channel with a length shorter than the sliding channel. The part of the sliding channel which extends out of the sliding block forms a transferring space to connect to the flow path. Two ends of the sliding block are closely contacted with an inner surface of the protrusion. And the middle section of the sliding block is concaved to obtain a slot.

The towing member is embedded in the slot nestling to the slot wall. The towing member is inserted with a positioning rod at the center. And a shaft of the positioning rod is parallel to a shaft of the rotor. The shaft of the positioning rod is located on the line of two protrusions and is deviated from the shaft of the rotor. The sliding block is towed by the towing member to reciprocate a long the sliding channel. Thus, the transferring space is used to transfer fluid.

The cover unit is covered on the top of the surrounding wall to seal the flow path. And the positioning rod is fixed with the cover unit to position the shaft of the towing member.

The prior art uses a towing member to reciprocate a sliding block following the rotation of the rotor along a radial path so that fluid in the fluid channel are pumped with sucking and pushing motions. However, the prior art has a complex structure with a running gear (a motor) at the outside. And a big noise is produced when using the running gear. Hence, the prior art does not fulfill users' requests on actual use.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to lessening a component number of a pump; to simplify fabrication and assembly procedures; and to reduce friction noise of vibration.

To achieve the above purpose, the present invention is a pumping device, comprising a base, a rotating unit, a driving unit and a cover unit, where the base has a containing space; the containing space has a first indentation and a second indentation having a hole separately; the rotating unit is movably set in the containing space; the rotating unit has a channel on an end surface; the channel has a first opening and a second opening corresponding to the first indentation and the second indentation respectively; the driving unit is set in the channel of the rotating unit; the driving unit has a long hole; the cover unit is covered on the containing space; and the cover unit has a shaft on an end surface to movably penetrating through the long hole of the driving unit. Accordingly, a novel pumping device is obtained.

BRIEF DESCRIPTIONS OF THE DRAWINGS

The present invention will be better understood from the following detailed description of the preferred embodiment according to the present invention, taken in con junction with the accompanying drawings, in which

FIG. 1 is the perspective view showing the preferred embodiment according to the present invention;

FIG. 2 is the explosive view;

FIG. 3 is the cross-sectional view;

FIG. 4 is the view showing the state of use;

FIG. 5 is the cross-sectional view at the first direction showing the state of use; and

FIG. 6A to FIG. 6D are the cross-sectional views at the second direction.

DESCRIPTION OF THE PREFERRED EMBODIMENT

The following description of the preferred embodiment is provided to understand the features and the structures of the present invention.

Please refer to FIG. 1 to FIG. 3, which are a perspective view, an explosive view and a cross-sectional view showing a preferred embodiment according to the present invention. As shown in the figures, the present invention is a pumping device, comprising a base 1, a rotating unit 2, a driving unit 3 and a cover unit 4, where components of the pumping device are few in number; a fabrication procedure and an assembly procedure are simplified; and a friction noise from vibration is reduced.

The base 1 has a containing space 11; a first indentation 12 and a second indentation 13 are set at the side surface of the base 1; and, the first indentation 12 and the second indentation 13 are vented with a first hole 121 and a second hole 131 respectively.

The rotating unit 2 is movably set in the containing space 11 of the base 1; the rotating unit 2 has a motor 21; the motor 21 is connected with a rotor 22; the rotor 22 has a channel 221 on a surface; and, the channel 221 has a first opening 222 and a second opening 223 separately at two ends of the channel 221. The motor 21 can further connect to the rotating unit 2 from outside of the rotating unit 2.

The driving unit 3 is set in the channel 221 of the rotating unit 2 and has a long hole 31.

The cover unit 4 is coordinated with a fixing member 41 to be fixed on an end surface of the base for covering the containing space 11 of the base 1; the cover unit 4 has a shaft 42 on an end surface of the cover unit 4 movably penetrating through the long hole 31 of the driving unit 3; and, the shaft 42 has a bearing 43 for lubrication as required. Thus a novel pumping device is obtained.

Please refer to FIG. 4, FIG. 5 and FIG. 6A to FIG. 6D, which are a view showing a state of use and cross-sectional views at a first direction and a second direction showing the state of use. As shown in the figures, when using the present invention, a first pipe 14 and a second pipe 15 are connected to a first hole 121 of a first indentation 12 and a second hole 131 of a second indentation 13 respectively. The first pipe 14 is used as an input terminal; and the second pipe 15 is used as an output terminal. (It is also all right to use the first pipe 14 as an output terminal and the second pipe 15 as an input terminal by reversing motor rotating direction.) The input and output terminals input and output a work fluid or gas; and are connected with an outside device. Thus, the present invention is used in a heat dissipation system or simply a pump which requires to transfer liquid or gas. An outside power is applied to a motor 21 of a rotating unit 2 to move a rotor 22 by the motor 21. And a long hole 31 of a driving unit 3 is coordinated with a shaft 42 of a cover unit 4 to push the driving unit 3 to slide in a channel 221 of the rotor 22. At first, the working fluid or gas enters from the first hole 121 of the first indentation 12 through the first pipe 14. Between the first opening 222 and the first indentation 12, a first interspace 51 is formed to let the working fluid or gas flow in. When a first opening 222 and a second opening 223 at two opposite ends of the channel 221 of the rotor 22 are corresponding to the first indentation 12 and the second indentation 13 respectively, the rotor 22 rotates clockwise and the driving unit 3 is moved toward the second indentation 13 and the first opening 223 until the second indentation is sealed by the rotor 22. The rotor 22 keeps rotating until the first opening 222 is corresponding to the second indentation 13. The working fluid or gas in the first interspace 51 is pushed from the second hole 131 of the second indentation 13 to the second indentation 13 to be outputted to the outside device through the second pipe. Thus, a circle of transferring is finished. At the same time, the second interspace 52 is formed by the second opening 223 and the first indentation 12 at the opposite end; and the working fluid or gas flows in. When the rotor 22 keeps rotating until the second opening 223 is corresponding to the second indentation 13 again, the working fluid or gas in the first interspace 51 is pushed to the second indentation 13 to be outputted from the second hole 131 of the second indentation 13 to the outside device through the second pipe. As shown in FIG. 6A to FIG. 6D, steps in a circle are shown. Such a circle is run for 360 degrees; that is, there are two circles run. Hence, the working fluid or gas is transferred with low and saved energy.

To sum up, the present invention is a pumping device, where component number of the device are few; the fabrication and the assembly is thus simplified; friction noise of vibration is reduced; and the energy is saved.

The preferred embodiment herein disclosed is not intended to unnecessarily limit the scope of the invention. Therefore, simple modifications or variations belonging to the equivalent of the scope of the claims and the instructions disclosed herein for a patent are all within the scope of the present invention. 

1. A pumping device, comprising a base, said base having a containing space, said containing space having a first indentation and a second indentation, said first indentation and said second indentation having a first hole and a second hole respectively; a rotating unit, said rotating unit being movably located in said containing space of said base said rotating unit having a channel on an end surface of said rotating unit, said channel having a first opening and a second opening at two opposite ends of said channel corresponding to said first indentation and said second indentation respectively; a driving unit, said driving unit being located in said channel of said rotating unit, said driving unit having a long hole; and a cover unit, said cover unit covering on said containing space of said base, said cover unit having a shaft movably penetrating through said long hole of said driving unit.
 2. The device according to claim 1, wherein said rotating unit has a motor and a rotor; wherein said channel of said rotating unit is obtained by a channel on an end surface of said rotor; and wherein said motor is connected with said rotor.
 3. The device according to claim 1, wherein said shaft of said cover unit is slipped with a bearing.
 4. The device according to claim 1, wherein said cover unit is coordinated with a fixing member to be fixed at an end surface of said base. 